Hitachi EP-A9000 Instruction Manual page 40

Troubleshooting Guide
Symptoms
 Is the unit placed in a location where it cannot be
The air sensor
display color
 Is the dust sensor dirty?
does not change
from green
 Is the odor sensor opening blocked by dust or any
 Is there anything nearby that the odor sensor may detect?
The air sensor
display color
does not change
 Is the dust sensor dirty?
from red
 Is the odor sensor opening blocked by dust or any
 Is the water supply indicator lit?
Does not humid-
 Is the Filter Cleaning indicator lit?
ify
 Is the Humidity Monitor displaying 70%?
The humidi-
 Is the airflow rate weak?
fying perfor-
mance is inad-
equate
(Water in the
 Is there any dust on the pre-filter?
water tank
has not de-
creased)
 Is the humidifying filter correctly set?
 Is the water tank correctly installed in the unit?
 Is the tank cover securely attached?
 Is the humidifying filter securely installed in the unit?
The water is
leaking
 Was the unit tilted or carried while there was still
 Are there any cracks in the water tank or tank cover?
 Is water leaking from the tank?
The clean
 Did you reset the clean filter indicator after clean-
filter indicator
does not turn off
The touch op-
 Did you set the touch operation panel display to be
eration panel dis-
play disappeared
E-40
Check
reached by odors and dust?
other objects?

Heating appliances that generate combustion gases

Alcohol, cosmetics, sprays, etc.
other objects?
Or is it dirty with water scales?
water inside?
ing the humidifying filter?
hidden?
(Continued)
Solution
Try moving it to another location.
Clean the dust sensor.
(P.E-36)
Clean the odor sensor.
(P.E-36)
The purifier may detect components of invisible gas that
cannot be cleaned by the filter and still continue operating.
Open a window for ventilation.
(P.E-27)
Clean the dust sensor.
(P.E-36)
Clean the odor sensor.
(P.E-36)
Fill the tank with water.
Refer to "When the Filter Cleaning Indicator
Comes On" in "Cleaning" when cleaning the hu-
midifying filter. (P.E-28 - E-31)
It automatically operates according to the humid-
(P.E-20)
ity level.
Depending on the location or operating envi-
ronment, the water may not decrease. When
"Medium" or "Silent" airflow rate is selected, the
humidifying performance is lessened.
Set the airflow rate to "High" or "Max".
(P.E-21)
Refer to "Pre-filter" in "Cleaning" when cleaning
the pre-filter.
(P.E-34)
Set the humidifying filter correctly.
(P.E-30)
Clean or replace the humidifying filter if it is dirty.
(P.E-28 - E-31)
Install the water tank correctly in the unit.
(P.E-16, E-17)
Attach the tank cover securely.
(P.E-16)
Securely install the humidifying filter in
(P.E-30)
the unit.
Place the unit on even ground, and do not carry the unit
while there is still water inside.
Also, when transferring the unit on casters, there
is a risk of spilling the water, therefore, transfer
the unit slowly across a flat surface.
Immediately stop using the unit, go to your shop
dealer and request repairs.
Immediately stop using the unit, go to your shop
dealer and request repairs.
Hold the off-timer for approximately 3 seconds.
(P.E-31)
Hold display switch button for 3 seconds and
switch the display settings.
(P.E-31, E-32)
(P.E-19)